Difference between DataFrames and DataSets



My Point of confusion is what is the difference between DataFrames and DataSets.

While Spark documents says, Datasets are only available in java and scala, we are having pyspark tutorials named “Pyspark Joining Datasets using SQL” which is adding to further confusion.

Also would like to know the diff ways to create DataFrames and DataSets and the actual operational/architectural differences between them.

Please help.